Results 41 to 50 of about 6,726 (285)

Salud ambiental del río ranchería a través de macroinvertebrados acuáticos en el área de influencia del complejo carbonífero el cerrejón

open access: yesTecnura, 2020
Objetivo: Esta investigación tuvo como objetivo evaluar la salud ambiental del ecosistema lótico río Ranchería en el área de influencia del complejo carbonífero El Cerrejón, a través de bioindicación con macroinvertebrados acuáticos.
Ana Patricia Espinosa Romero   +2 more
doaj   +1 more source

\u3ci\u3eEnallagma Anna,\u3c/i\u3e A Damselfly New to the Great Lakes Region (Odonata: Coenagrionidae) [PDF]

open access: yes, 2018
Enallagma anna, a predominantly western North America damselfly, is now recorded from southwestern Michigan and southwestern Ontario for the first ...
O\u27Brien, Mark F, Pratt, Paul D
core   +2 more sources

Higher gregarine parasitism often in sibling species of host damselflies with smaller geographical distributions [PDF]

open access: yes, 2012
1. This study investigated inter-specific variation in parasitism by gregarines (Eugregarinorida: Actinocephalidae), among sibling species of damselflies (Odonata: Zygoptera), in relation to relative size of geographical ranges of host species.
Forbes, MR, Hassall, C, Mlynarek, JJ
core   +1 more source

First Records for \u3ci\u3eAeshna Sitchensis\u3c/i\u3e (Odonata: Aeshnidae) and \u3ci\u3eEnallagma Clausum\u3c/i\u3e (Odonata: Coenagrionidae), and a Northwestern Record for the State-Endangered \u3ci\u3eSomatochlora Incurvata\u3c/i\u3e (Odonata: Corduliidae) in Wisconsin [PDF]

open access: yes, 2018
While surveying for Odonata in coastal peatlands and associated shoreline areas adjacent to Lake Superior in Wisconsin, we documented populations of two new state record species, the zig-zag darner (Aeshna sitchensis Hagen) and the alkali bluet ...
DuBois, Robert B   +4 more
core   +2 more sources

Coenagrionidae Kirby 1890

open access: yes, 2022
Familia Coenagrionidae De distribución cosmopolita, en Argentina se registran 23 géneros y 70 especies (Lozano et al., 2020). La mayoría de sus ninfas son habitantes comunes de estanques poco profundos con vegetación de diversos tamaños, marismas, pantanos y costas de grandes lagos (von Ellenrieder y Garrison, 2009).
openaire   +2 more sources

The Status ofIschnura senegalensis(Odonata: Coenagrionidae) in Cape Verde [PDF]

open access: yesAfrican Entomology, 2016
The first record of a zygopteran breeding population in the Cape Verde archipelago is presented. A small population of Ischnura senegalensis (Rambur, 1842) was found living in the lagoon ‘Lagoinha’, Santiago island, where the species was observed in all seven surveys conducted between May 2014 and June 2015.
Loureiro, Nuno de Santos, Martins, S.
openaire   +3 more sources

Analysis of an alternative method for the study of bromeliad-associated fauna in plants with different foliar organization

open access: yesAnais da Academia Brasileira de Ciências, 2010
The efficiency of an alternative method of collection (by suction of water) for the study of Culicidae and Chironomidae (Diptera), Scirtidae (Coleoptera) and Coenagrionidae (Odonata) in bromeliads with different foliar architecture in a restinga at ...
Gerson A. Müller   +3 more
doaj   +1 more source

Persistence of Urban Stream Syndrome Effects from Point Source and Non-Point Source Pollutants [PDF]

open access: yes, 2017
In a previous study, Sager Creek, a small 1st-3rd order stream in northwest Arkansas was shown to be negatively impacted by urban land usage within the watershed, producing a stream that exhibited several indicators of urban stream syndrome.
Wakefield, T. S.
core   +3 more sources

The first records of coenagrionid damselflies (Odonata: Zygoptera: Coenagrionidae: Neoerythromma sp. and Nehalennia sp.) from Mexican Amber (Miocene) [PDF]

open access: yes, 2017
Two specimens of the damselfly (Odonata: Zygoptera) family Coenagrionidae are described from Mexican amber of early Miocene age, identified as Neoerythromma sp. and Nehalennia sp.
José, M A C, Nel, A, Ross, Andrew
core   +1 more source

Coenagrionidae Kirby 1890

open access: yes, 2019
COENAGRIONIDAE “Coenagrioninae” (Kirby, 1890) Coenagrionidae is the largest family of damselflies in the world with more than 130 genera and over 1200 species. These totals are based on recent molecular phylogenetic studies indicating that the Pseudostigmatidae and New World Protoneuridae belong in the Coenagrionidae (Dijkstra et al. 2014).
Mauffray, William F.   +1 more
openaire   +1 more source

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